Journal
METALS AND MATERIALS INTERNATIONAL
Volume 27, Issue 11, Pages 4510-4516Publisher
KOREAN INST METALS MATERIALS
DOI: 10.1007/s12540-020-00703-y
Keywords
Dilute magnesium alloy; Extrusion; Ductility; Corrosion; Texture
Funding
- National Natural Science Foundation of China [51704209, 51701060]
- Natural Science Foundation of Shanxi [201801D121088]
- Shanxi Province Science Foundation for Youths [2016021063]
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The novel dilute Mg-0.5Sn-0.7Al-0.8Zn alloy, directly extruded after casting, exhibited a fine bimodal grained microstructure, local nano-precipitates micro-region, and typical extrusion direction (ED)-tilted texture. It achieved a great balance between tensile properties and corrosion resistance, suggesting its potential for development as a biomaterial.
A novel dilute Mg-0.5Sn-0.7Al-0.8Zn alloy was developed and directly extruded after casting process. The extruded alloy consisted of fine bimodal grained microstructure, local nano-precipitates micro-region and typical extrusion direction (ED)-tilted texture. A great balance between tensile properties (YS = 262.7 MPa, EL = 26.0%) and corrosion resistance (Pi = 1.57 mm/a) was achieved and discussed in terms of grain size, structure, orientation as well as precipitates and/or corrosion product film. As a result, this dilute alloy system shows the great potential to be developed as a biomaterial.
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